Results of Diagnostic Performance
| Identification of recurrent metastatic brain tumor | TBRmax > 2.55 | TBRmean > 1.95 | 18F-FET kinetic patterns II and III | 18F-FET kinetic patterns II and III in combination with TBRmean > 1.95 |
| Sensitivity | 79% | 74% | 84% | 95% |
| Specificity | 76% | 90% | 100% | 91% |
| Accuracy | 78% | 83% | 92% | 93% |
| AUC ± SE | 0.822 ± 0.07 | 0.851 ± 0.07 | — | 0.959 ± 0.03 |
| P | 0.001 | <0.001 | <0.0001 | <0.001 |